Measuring the effect of long-term pitfall trapping on the prevalence of epigeal arthropods: A case study in the Pacific Coast of Colombia

IF 0.7 4区农林科学 Q4 ENTOMOLOGY

Sociobiology Pub Date : 2021-06-11 DOI:10.13102/SOCIOBIOLOGY.V68I2.5928

J. Martínez, Rubilma Tarazona, B. Lohr, Consuelo Alexandra Narvaez

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引用次数: 1

Abstract

Pitfall trapping is one of the most frequently used methods to assess ground-active arthropods’ diversity and density (Brown & Matthews, 2016; Greenslade 1964; Southwood, 1978). Its advantages and drawbacks have been the subject of discussion for a long time (Adis, 1979, Southwood & Henderson, 2016). Many attempts have been made to correct some of the most salient biases resulting from it (Greenslade, 1964; Hayes, 1970; Gist & Crossley, 1973; Luff, 1975). Sheikh et al. (2018) provide a detailed review on the use of pitfall trapping for ants worldwide. However, despite the many complaints about the method and the voluminous literature about the subject, the possibility that Abstract Pitfall trapping remains one of the most frequently used methods to assess ground-active arthropods’ diversity and density. Yet, one of its main drawbacks, the possibility that repeated collecting may affect the study objects’ population, has not been formally tested. We studied the effect of a yearlong epigeal pitfall trapping exercise with 22 fortnightly capture events in four differently disturbed areas at the Colombian Pacific coast. A transect of 100 m length with ten equidistant pitfall traps was established in each area, and the traps were operated twice a month for 24 hours. Using count data regression models, we find that trapping did not affect subsequent captures when we analyzed non-ant arthropods. For ants, regression estimates indicate that each subsequent trapping in highly-disturbed environments ended, on average, reducing all ants in between -3.8 and -4.1%, and Ectatomma ruidum between -4.7 and -5.1%. We recommend bio-ecological aspects of the species under study be considered when interpreting results. This is important for future studies that rely on this method to deliver consistent estimates of population sizes or study their dynamics through time. At the same time, it is also a call for scientists to revise more carefully how species’ peculiar traits may limit the reliability of traditional methods. Sociobiology An international journal on social insects

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测量长期陷阱诱捕对上肢节肢动物流行的影响:以哥伦比亚太平洋海岸为例

陷阱是评估地面活动节肢动物多样性和密度最常用的方法之一（Brown&Matthews，2016；Greenslade 1964；Southwood，1978）。其优点和缺点一直是人们讨论的主题（Adis，1979，Southwood&Henderson，2016）。已经进行了许多尝试来纠正由此产生的一些最显著的偏见（Greenslade，1964；Hayes，1970；Gist和Crossley，1973；Luff，1975）。Sheikh等人（2018）对全球蚂蚁陷阱的使用进行了详细回顾。然而，尽管人们对该方法有很多抱怨，也有大量关于该主题的文献，但抽象陷阱法仍然是评估地面活动节肢动物多样性和密度最常用的方法之一。然而，其主要缺点之一，即重复收集可能会影响研究对象的群体，尚未得到正式测试。我们在哥伦比亚太平洋海岸的四个不同扰动地区研究了为期一年的表观陷阱捕获演习的效果，每两周进行22次捕获活动。在每个区域建立一个100米长的样带，带10个等距陷阱，陷阱每月操作两次，持续24小时。使用计数数据回归模型，我们发现在分析非蚂蚁节肢动物时，诱捕不会影响随后的捕获。对于蚂蚁，回归估计表明，随后在高度干扰环境中的每次诱捕平均结束，所有蚂蚁减少了-3.8%至-4.1%，Ectatomma ruidum减少了-4.7%至-5.1%。我们建议在解释结果时考虑研究物种的生物生态方面。这对未来依靠这种方法对人口规模进行一致估计或研究其随时间变化的动力学的研究很重要。同时，这也呼吁科学家更仔细地修正物种的特殊特征如何限制传统方法的可靠性。社会生物学一种关于社会昆虫的国际期刊

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来源期刊

Sociobiology 生物-昆虫学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

3 months

期刊介绍： SOCIOBIOLOGY publishes high quality articles that significantly contribute to the knowledge of Entomology, with emphasis on social insects. Articles previously submitted to other journals are not accepted. SOCIOBIOLOGY publishes original research papers and invited review articles on all aspects related to the biology, evolution and systematics of social and pre-social insects (Ants, Termites, Bees and Wasps). The journal is currently expanding its scope to incorporate the publication of articles dealing with other arthropods that exhibit sociality. Articles may cover a range of subjects such as ecology, ethology, morphology, population genetics, physiology, toxicology, reproduction, sociobiology, caste differentiation as well as economic impact and pest management.